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Computer

Issue 11 • Date Nov. 1992

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Displaying Results 1 - 11 of 11
  • Molecular computing: the lock-key paradigm

    Publication Year: 1992, Page(s):11 - 20
    Cited by:  Papers (3)  |  Patents (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1168 KB)

    Molecular computers are natural or artificial systems in which macromolecules individually mediate critical information-processing functions. Biological organisms are the naturally occurring examples. Their information-processing virtuosity traces ultimately to the fact that macromolecules, most notably proteins, can recognize specific molecular objects in their environment in a manner that uses s... View full abstract»

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  • Biologic computational building blocks

    Publication Year: 1992, Page(s):22 - 29
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (647 KB)

    Methods to represent the biological activity of oxidoreductase enzymes using logic state diagrams and to simulate the enzymes' functionings using synchronous sequential digital circuits are presented. The steps of this transform from biologics to logic involve the enzymes 'electron kinetic behavior, which reveals the basic reaction pathways of the enzyme building blocks. Because these pathways are... View full abstract»

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  • Models for molecular computation: conformational automata in the cytoskeleton

    Publication Year: 1992, Page(s):30 - 39
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1134 KB)

    The structure and conformational dynamic changes that occur in cytoskeletal proteins within living cells and evidence for their participation in computational processing are described. The role of cellular automata, in which lattice subunits with discrete states interact only with nearest neighbors, in molecular computing is discussed. Simple rules governing subunit neighbor interactions can lead ... View full abstract»

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  • Interconnection-free biomolecular computing

    Publication Year: 1992, Page(s):41 - 51
    Cited by:  Papers (18)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1030 KB)

    The basic concept of interconnection-free biomolecular computing and its realization in a computing model based on the massive, natural parallelism between enzymes and their substrates are described. An approach to implementing the model is presented. The approach involves two primitive switching functions: detecting specific substrates in solution using enzyme-based biosensors and producing speci... View full abstract»

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  • An approach to computational complexity: nondiscrete biomolecular computing

    Publication Year: 1992, Page(s):51 - 54
    Cited by:  Papers (1)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (377 KB)

    Discrete molecular computing devices based on digital device simulation and nondiscrete biomolecular computing devices based on the overall principles of information processing that use molecular-level mechanisms to create simple biomolecular systems are described. It is argued that discrete molecular computing only extends the choice of materials available in modern semiconductor device technolog... View full abstract»

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  • Protein-based optical computing and memories

    Publication Year: 1992, Page(s):56 - 67
    Cited by:  Papers (10)  |  Patents (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1420 KB)

    The current and potential uses of bacteriorhodopsin in optical computing and memory devices are reviewed. The protein has significant potential for use in these applications due to unique intrinsic photophysical properties, and the range of chemical and genetic methods available for optimizing performance for specific application environments. The intrinsic properties of the native bacteriorhodops... View full abstract»

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  • The 1990-91 Taulbee survey report (computer science education)

    Publication Year: 1992, Page(s):69 - 75
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (579 KB)

    The key findings of the 1990-91 Taulbee Survey Report describing the results of a study of the Forsythe list of computing departments are presented. The Forsythe list enumerates all departments in the US and Canada that grant PhDs in computing, specifically in computer science (CS) and computer engineering (CE). Completed in December 1991, the latest survey concerns the production and employment o... View full abstract»

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  • Machine intelligence-the animat path to intelligent adaptive behaviour

    Publication Year: 1992
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (303 KB)

    The animat path to artificial intelligence (AI), a bottom-up approach to creating intelligent systems, is described. Using this approach, artificial creatures or agents animats are constructed in an environment. They begin simply and are gradually made more and more complex, exhibiting more and more complex behaviors at each step. The goals and accomplishments of five research projects incorporati... View full abstract»

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  • Machine intelligence-toward an artificial brain

    Publication Year: 1992, Page(s):79 - 80
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (289 KB)

    An artificial brain project in which conceptual models are specified algorithmically is discussed. The feature that distinguishes the approach used in this project from connectionist neural models is its vertical abstraction of brain structure and function. The models comprise multiple local networks of neurons, each of which is a complex network of molecular and chemical processes. The memory man... View full abstract»

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  • International software piracy

    Publication Year: 1992, Page(s):87 - 90
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (553 KB)

    It is argued that with the rapid changes in the global business environment and the western stake in expanding markets, protection of intellectual property and prevention of software piracy are among the most important international problems facing western economies. The inherent nature of software, which makes it easy to replicate and difficult to protect under copyright laws, is discussed. Measu... View full abstract»

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  • Standards-are software engineering process standards really necessary?

    Publication Year: 1992, Page(s):82 - 84
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (436 KB)

    The need for software engineering process standards-as opposed to product standards-is discussed from two different viewpoints. M.V. Zelkowitz states that process standards are generally written as policy statements on how to conduct certain processes. As such, they give the framework of the underlying model, but not enough guidance to specify details. They are fuzzy and hard to implement, and the... View full abstract»

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Aims & Scope

Computer, the flagship publication of the IEEE Computer Society, publishes peer-reviewed articles written for and by computer researchers and practitioners representing the full spectrum of computing and information technology, from hardware to software and from emerging research to new applications. 

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Editor-in-Chief
Sumi Helal
University of Florida
sumi.helal@gmail.com